Major Sources of Water Pollution
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Agriculture: by far the leader • Sediment, fertilizers, bacteria from livestock, food processing, salt from soil irrigation
Industrial: factories and powerplants Mining: surface mining toxics, acids, sediment |
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• Freshwater pollution: What are major problems in streams?
• Developed versus Developing Countries
• Lake Pollution: Why are lakes and reservoirs more vulnerable?
• What is Eutrophication?
Freshwater Stream Pollution
Flowing streams can recover from moderate level of degradable water pollution if their flows are not reduced. • Natural biodegradation process
• Does not work if overloaded or stream flow reduced
• Does not work against non biodegradable pollutants |
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